A new study found that in almost 50% of early-onset colorectal cancer cases, people suffer from two symptoms. These include abdominal pain and hematochezia (blood in the stool).
In the United States, colorectal cancer is more common among older adults. People are diagnosed at an average age of 66. But the incidence of early-onset colorectal cancer (defined as cases diagnosed in people under age 50) is increasing and has doubled since the 1990s.
The new review, published in JAMA Network Open, examined 81 studies involving more than 24 million people under the age of 50. People with early-onset colorectal cancer in the United States and around the world have been found to experience blood in their stool, abdominal pain, and changes in bowel habits.
The study authors also found that 45% of people with early-onset colorectal cancer had hematochezia (bloody stools), and about 40% of patients had abdominal pain. The third most common symptom of early-onset colorectal cancer (affecting 27% of people) was a change in bowel habits (constipation, diarrhea, changed bowel habits, or alternating diarrhea and constipation).
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Source: Ferra
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